It's a story you'll only see on 6 News: A former girlfriend of Aaron Dishong speaks out about his controlling and violent tendencies.

Dishong is the man police said set fire to an Altoona duplex last week with intentions of killing an ex-girlfriend he thought was living inside. Instead, three-year-old Darrel Etchison, Jr. died. His mother, Brandy, and two-year old sister, Madison, were seriously hurt.

6 News reporter Maria Miller dug through court documents Monday that paint Dishong as a violent person. Protection from abuse orders called him mean and said he hits things a alot, including his own son as a child. Two people filed PFA's against Dishong: the former girlfriend police said he was targeting last week, and his own son.

His son wrote in his complaint, "He has problems getting revenge on people. He has burned down his ex-girlfriend's house and I don't want him doing it to me."

6 News was unable to find charges of arson against Dishong prior to last week, but Miller spoke with a woman who said she used to date Dishong.

"He's controlling. He makes you feel good and then he makes you feel bad," said the woman, who wished to remain anonymous. "(You) couldn't trust him at all.""

She told 6 News she believes Dishong had something to do with her Vintondale apartment complex burning to the ground in February 2011. She said it happened just a few days after she broke up with him.

"I was with my husband and Aaron tried coming up to us. I just grabbed ahold of my husband crying and said, 'I don't want him by me,'" said the woman. "I said, 'I know he started this. It's just the way he is.'"

Four families lost everything in that fire along Main Street in Vintondale, which was ruled undetermined by a fire marshal.

"I didn't believe it the way the fire burnt, because there was stuff in my closet that should have been there still," she said. "There was nothing left in my closet. I still say he took everything out of it."

The woman told 6 News she never went to police because she was so scared of Dishong and what he was capable of doing.